ture or sale of separate elements capable of being, but never actually, associated to form the invention. Only when such association is made is there a direct infringement of his monopoly, and not even then if it is done outside the territory for which the monopoly was granted.” Page 628.
As to testing, we said: “No method of testing is suggested which would not necessitate assembling the tubes and receiver and using them as the complete combination of the patents in suit. • We should hesitate, therefore, to hold that the District Judge was not justified in finding that ‘each set is tested by defendant before sale or packing for delivery.’ But he made no express finding that such test was an infringement of the claims in suit, nor is it clearly indicated in his opinion that he would have granted a preliminary injunction if the evidence as to tests were the only proof of infringement. The injunction was granted on the basis that the defendants were manufacturing and selling a complete combination which infringed, even though the tubes were not inserted in the sockets of the receiver at the time of sale.” Page 629.
On this record it appears that the receiver and tubes were assembled completely and tests of operation were made after which the tubes were taken out, packed in separate cartons but within the same larger carton as the receiver. The sales for the completed receiving sets were made within the territorial limits of the United States and shipped in export. The single package contained all the elements of the combination.
In Bullock Electric & Mfg. Co. v. Westinghouse Mfg. Co., 129 F. 105, 109 (C.C.A.6), certiorari denied 194 U.S. 636, 24 S.Ct. 859, 48 L.Ed. 1160, the defendants sold but one element of the combination and the court held that this sale did not violate the injunction which had been issued forbidding the sale of apparatus employing the claimed invention and said: “it is elementary that neither the making, selling, nor using of one element of a combination is infringement.”
Further: “Unless, therefore, .the making and selling of a single element of a patented device, within the limits of the United States, with the intention that it shall be sent without the United States, and there used in association with the other elements of the combination, constitutes infringement, the defendants did not disobey the order of the court.” 129 F. 105, at page 110.
There is a difference between the Bullock and the instant case because here the defendants did sell all the elements of the completed patented. combination, put them together, used them in testing, and then separated them merely within a single package for sale within this country and exportation.
In Computing Scale Co. v. Toledo Computing Scale Co., 279 F. 648, 678 (C.C.A.7), certiorari denied 257 U.S. 657, 42 S.Ct. 184, 66 L.Ed. 420, the patented claim was for a cylinder scale consisting of several parts. “No completed cylinder scale nor completed cylinder was ever shipped to Canada. Some parts were manufactured in Canada, and some were made here and shipped there; but the parts were there assembled into completed scales [in Canada] and there delivered to Canadian users.” 279 F. 648, at page 678. In the instant case the invention is defined as a combination of vacuum tubes with circuits. Defendants may not be relieved of infringement merely because the tube electrodes are physically disconnected from the circuits at the moment of sale. Cf. Spirella Co. v. Nubone Corset Co., 180 F. 470, 473 (C.C.Pa.); Stro-bridge v. Lindsay, Sterritt & Co., 6 F. 510 (C.C.Pa.). We hold, therefore, that on this record there is infringement by the sale of the combination as described.
The testing process was held below to be an infringing use from the time certain noninfringing uses were developed. The testing was a commercial use of the completed combination of the patents “just as it is to be used by the ultimate purchasers,” even though the receiving waves and musical tone were generated in a laboratory rather than at a distant transmitting station. It is enough that it was necessary to assemble the tubes and the receiver and to use them as a complete combination of the patent in suit. The tests were made to see if they were marketable — a commercial and hence an infringing use. Cimiotte Unhairing Co. v. Derboklow, 87 F. 997 (C.C.N.Y.)
But the defendants argue that in purchasing the tubes in the open market from the plaintiffs’ licensee they acquired an implied license to assemble and test the cornpíete superheterodyne receiver. It is further observed that these tubes are “primarily designed” for the use complained of.