Abstract: This invention relates to novel 7-(substituted or unsubstituted amino)-3-substituted methyl-.DELTA..sup.3 -cephem-4-carboxylic acids in which a substituted or unsubstituted 1,2,4-triazolyl or 2-(1,2,3,4-tetrazolyl) group attaches to the exomethylene group at the 3-position of the cephem ring through a carbon-nitrogen bond. These cephalosporins are useful intermediates for producing various novel cephalosporins. Also, this invention concerns a process for producing a compound represented by the formula: ##STR1## which comprises reacting a compound represented by the formula: ##STR2## with an optionally substituted triazole or tetrazole in the presence of an acid or a complex of the acid in an organic solvent at 0.degree. to 80.degree. C.

Abstract: A utility booster chair including a back and a pair of spaced opposed arm members extending in substantially perpendicular relation therefrom, the chair being contour formed in the shape of an animal and having a platform adjustably connectable to the arm members for different heights and different usages.

Abstract: A toy computer image processor assembly wherein a toy assembly in the form of a simulated computer is provided with hand manipulated actuating members in a keyboard section connected to image producing means in a screen section to selectively move such image producing means into and out of engagement with the screen and in selected directions along the screen.

Abstract: A toy computer "busy box" assembly wherein a toy assembly in the form of a simulated computer is provided with hand manipulated actuating members in a keyboard section connected to image producing members in a screen section through systems of gears and levers to produce moving visible images on the screen section.

Abstract: A toy assembly which is battery operated to provide a moving design pattern which is visually enhanced by a transparent cover of varying density, the assembly including a unique actuating and interrupting switch arrangement and a unique coupling arrangement for several of the parts.

Abstract: An improved skate fastener assembly including an arrangement to permit preselected positioning and limited inward and outward movement of the shoe-engaging portions of a skate fastener assembly.

Abstract: An improved kaleidoscope assembly having a small actuating member external of the housing to rotate the image producing head disposed within the housing and having improved image producing reflecting means.

Abstract: A push-pull toy assembly wherein paired rotating vane members of the assembly are driven at differing rotational relationship through a gear mechanism connected to the wheels of the assembly.