"0"^^ . . . . . "heliotype"@en-us . . . . . "103382590"@en-us . . "103510987"^^ . . "duplicator consisting of a gelatin plate from which ink can be taken to make a copy"@en-us . . . . . "hectograph"^^ . . . "hectograph"@en-us . "0"^^ . . . . "03510987-n"^^ . "102813459"@en-us . . . .