US Patent: 362,960 - Instrument for Ascertaining the Variation of the Compass


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US Patent: 362,960

Instrument for Ascertaining the Variation of the Compass

Patentee:

Hans Harild (exact or similar names) - North Shields, Northumberland County, England

USPTO Classifications:

33/268

Tool Categories:

specialty tools : measuring apparatus

specialty tools : magnetic compasses

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	May 24, 1886
Granted:	May 17, 1887

Patent Pictures:

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Description:

Patented in England, 22 Oct., 1884, #13,964.

Claim:

My invention relates to an improved instrument by means of which the trae pole can be determined and the variation of the compass ascertained in any latitude without the aid of time.