Title:
SAFETY DEVICE FOR STAMPING MACHINES
United States Patent 3440909
Inventors:
Schmid, Heinrich
Bernet, Alois
Publication Date:
04/29/1969
Export Citation:
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Assignee:
Heinrich, Schmid
Primary Class:
83/61
Other Classes:
83/123, 83/128, 83/620
International Classes:
B21D55/00; B21D55/00; (IPC1-7): B26D5/00
View Patent Images:
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US Patent References:
2970503Punch tool drive means yieldable upon undue thickness of material being punched
2589849Punching machine
Foreign References:
GB1005517A




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