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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'KRETZER') AND (first_name = 'Sidney D.') ORDER BY date ASC, patent, type

Total of 4 patents found where: Last Name is 'KRETZER'; First Name is 'Sidney D.';

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T / S Patent Date Description Patentee Category Assigned To
D 42,173 February 13, 1912 Design for Lightning Rod Terminal
Lightning rod stand with twists and curls supporting glass ball, weather vane arron, and point
KRETZER, Sidney D.
Lightning Rod St. Louis Lightning Rod Co.
U 1,098,738 June 2, 1914 Lightning Rod
Lightning rod system with multiple points along the crest and eaves and conductor with multiple ground connections
KRETZER, Sidney D.
Lightning Rod  
U 1,313,391 August 19, 1919 Lightning Rod Coupling
Lightning rod coupling for spiralled ""star"" shaped lightning rods to allow the ends to be screwed together
KRETZER, Sidney D.
Lightning Rod Coupling  
U 1,682,288 August 28, 1928 Lightning Rod Construction
Lightning rod with ornamental support stand and method of attaching to roof peaks or sloped roof
KRETZER, Sidney D.
Lightning Rod  

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