US1401035 Gas-generator
Cited prior art · Boisen Martin · United States · 1921
Page 1 Drawing sheet — no readable text. Page 2 MARTIN BOISEN, OF SANDUSKY, cHo. 401,03 Specification of letters eatent, Paterated Dec. 20, 1921. Application
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US1380183 Gas-generator
Cited prior art · Boisen Martin · United States · 1921
annumers VarestrastasyWrivates IVENTOR a6 /%7/w A26a7W s cufzy BY “if AT TORNEYS Page 2 UNITED STATES PATENT OFFICE. MARTIN BOISEN, OF SANDUSKY, oh Io. 1,380,183. Specification of Letters Patent. Patented May 31, 1921.