发明名称 Improvements in optical projection apparatus
摘要 529,377. Lamps. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and STEVENS, W. R. May 5, 1939, No. 13495. [Class 75 (iv)] H.P.M.V. lamps are mounted with their axis coincident with the axis of the reflector. The lamps are two ended and have a defined ratio of power dissipated to length of discharge. Reference has been directed by the Comptroller to Specification 455,971.
申请公布号 GB529377(A) 申请公布日期 1940.11.20
申请号 GB19390013495 申请日期 1939.05.05
申请人 THE GENERAL ELECTRIC COMPANY LIMITED;VICTOR JAMES FRANCIS;WALTER ROBERT STEVENS 发明人
分类号 F21V7/00 主分类号 F21V7/00
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