Vould you like to know vhat you're makink?
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| Dr. H.C. Rentachler Patents:
Photoelectric device. H. C. Rentachler – 1934-1935
Photo-electric tube. H. C. Rentachler – 1934-1935
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Showing posts with label 1931. Show all posts
Showing posts with label 1931. Show all posts
Thursday, September 11, 2014
Mister Interested Employee, Doctor will see you now.
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