Perforating strip
United States Patent 2842202
US Patent References:
Perforating apparatus
2695205

N/A
1075781


Inventors:
Boyd, Harry S.
Publication Date:
07/08/1958
Export Citation:
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Assignee:
Boyd, Harry S.
Primary Class:
83/678
Other Classes:
101/226, 144/24.110, 144/24.100, 30/355
International Classes:
B41F19/00
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Foreign References:
GB191126549A
CA462244A