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CA Patent: CA-3,000
Venetian blind
Patentees:
Major Harper - Whitby, ON Canada
Stephen Grose - Whitby, ON Canada
William Wallace Byam - Whitby, ON Canada

USPTO Classifications:

Tool Categories:

Assignees:
None

Manufacturer:
Major Harper & Son - Whitby, ON Canada

Witnesses:
Unknown

Patent Dates:
Applied: Nov. 07, 1873
Granted: Jan. 13, 1874

Patent Pictures:
CIPO Data
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"Vintage Machinery" entry for Major Harper & Son
Description:
The inventors are all described as "machinists".

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