9009: Photo-copyg app incorp an optical sy/of the contact type & thermo-cop

900911: Electrostatic photo-copying apparatus, direct process type 900912: Electrostatic photo-copying apparatus, indirect process type 900921: Photo-copying apparatus, incorporating an optical system, nes 900922: Contact type photo-copying apparatus, nes 900930: Thermo-copying apparatus 900990: Parts and accessories for photo-copying apparatus 9009: Photo-copyg app incorp an optical sy/of the contact type & thermo-cop