Machine for jointing tyring in which a helical coiled wire core is embedded
- Made:
- 1920-1932
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Science Museum Group
© The Board of Trustees of the Science Museum
Machine for jointing tyring in which a helical coiled wire core is embedded. Covered by patent 9167/20. Final patent no.160,670. Suitable for 3/8", 7/16", 1/2", 9/16" and 5/8" tyring. Machine available for purchase 1920 to 1932
