Open-celled stretchable putting surface and associated stretch measuring means
United States Patent 3215436

Inventors:
Mitchell, Carter
Publication Date:
11/02/1965
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Assignee:
Mitchell, Carter
Primary Class:
473/171
Other Classes:
273/DIG.005, 521/918, 273/129R, 264/54, 273/DIG.008, 73/9, 473/107, 273/DIG.009, 521/55, 473/45, 273/DIG.002
International Classes:
A63B69/36; A63D5/00
US Patent References:
2993869Cellular polyurethane elastomer and preparation of same using a morpholine catalyst
2999823Foamed alkyd-polyisocyanate plastics
3038726Practice putting apparatus
3079641Process for molding a polyurethane foam by shaping it without compression
Foreign References:
CA620248A