| Author | Hershey, Benjamin.
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| Title | Testimony in the case of an interference between Benjamin Hershey and John Henry Helm, for a patent for a link welding machine.
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| Published | [Pittsburgh, Pa. : s.n., 1875]
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| Description | 27 p. ; 23 cm.
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| General Note | Cover title.
J.E.F. Holmead, attorney for Benjamin Hershey; George H. Christy, attorney for Helm.
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| Summary Note | Summary: Depositions in regard to patent rights for machines for welding chain links.
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| Subjects | Helm, John Henry -- Trials, litigations, etc.
Hershey, Benjamin. -- Trials, litigation, etc.
Patent suits -- Pennsylvania -- Pittsburgh.
Welding -- Equipment and supplies -- Patents.
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| Other Authors | Helm, John Henry
Holmead, J. E. F.
Christy, George H.
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| Call Number/Copies | |
| | WRHS Research Library: Pam. Z1041
mq236441: Pamphlets, closed stacks [status: NON-CIRCULATING] |
| [Record 142638] |
|