Instructional chair

Details Instructional chair Instructional chair

1978-07-25

1980-01-15

Skogquist, Harland S.

Chairs and seats

Collapsible chair; i.e., relatively folding bottom, back,...

With means to hold chair in plural operative configurations

46 17, 297440, A63H 3304

Patent

active

041831543

ABSTRACT:
A bolted together disassemblable instructional chair having color coded and number coded or letter coded joint portions and with joining portions provided with respectively different numbers and sizes of bolt openings fitted with corresponding bolts and nuts.

REFERENCES:
patent: 2677914 (1954-05-01), Christie
patent: 2765580 (1956-10-01), Herrschaft
patent: 3137967 (1964-06-01), Flieth
patent: 3611618 (1971-10-01), Steiner
patent: 4077517 (1978-03-01), Hilemn
patent: 4079995 (1978-03-01), Beckley
patent: 4082356 (1978-04-01), Johnson

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