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US Patent: 360,623
Tool for Making Spiral Springs
Patentee:
Johan Theodor Bernadotte Sidén (exact or similar names) - Nybo, Walbo, Sweden

USPTO Classifications:
140/121, 140/124

Tool Categories:
specialty machines : spring making machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jan. 07, 1886
Granted: Apr. 05, 1887

Patent Pictures:
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