Abstract: New purine nucleoside 5'-phosphate (mono, di or tri) 3'(2')-diphosphates and the sodium, lithium and potassium salts thereof are elaborated by the enzymatic transfer of pyrophosphoryl group from ATP (adenosine triphosphate), dATP (deoxyadenosine triphosphate) and pppApp (adenosine 5'-triphosphate 3'(2')diphosphate) to specified 5'-purine nucleotides, and a new nucleotide pyrophosphotransferase used for this enzyme reaction is produced by actinomycetes and other microorganisms and recovered from the culture filtrate and mycelium by the conventional methods for recovering enzymes.

Abstract: A table is detachably mounted to a fixing apparatus adjacent to and aligned with an inlet opening thereof. The table is formed with a longitudinal slot through which a pusher member vertically extends. A transfer sheet is placed on the table, and drive means reciprocally move the pusher member to push the transfer sheet into the fixing apparatus and return the pusher member to its original position.

Abstract: In an electrostatic copying machine, an original document is scanned by moving an original document over an illuminated slit. The system for illuminating the slit comprises an elongated light source and a first elliptic cylindrical mirror having a focus coincident with the axis of the light source to reflect light from the source into the slit. A second elliptic cylindrical mirror has a focus common with the first mirror and reflects light from the source parallel to the slit. A plane mirror reflects the light reflected from the second mirror into the slit.