Tissue culture tube rack means

Claim 1

A TISSUE CULTURE TUBE RACK MEANS COMPRISING A CASE HAVING TOP, BOTTOM, SIDE AND REAR WALLS WITH A FRONT OPENING AND A PLURALITY OF GUIDE SHELVES CONNECTED WITH SAID SIDE WALLS, AND A PLURALITY OF DRAWERS EACH FOR HOLDING A PLURALITY OF TEST TUBES RECEIVABLE THROUGH THE FRONT OPENING OF SAID CASE AND SLIDABLY ENGAGING SAID GUIDE SLEVES FOR BEING RETAINED WITHIN SAID CASE, THE SHELVES OF SAID CASE BEING POSITIONED TO RETAIN SAID DRAWERS AT A PREDETERMINED ANGLE TO THE HORIZONTAL AND PROJECT INWARDLY FROM AND ALONG THE INSIDE OF THE END WALLS OF SAID CASE TO PROVIDE STRIPS FOR MARGINALLY ENGAGING SAID DRAWERS AND OPENINGS BETWEEN ADJACENT DRAWERS, SAID TOP, BOTTOM AND REAR WALLS HAVING OPENINGS ALLOWING FOR AIR CIRCULATION ABOUT SAID DRAWERS, THE OPENING IN THE TOP WALL OF SAID CASE PROVIDING A STATIONARY HANDLE MEANS AND THE TOP AND BOTTOM WALLS ARE PROVIDED WITH INDENT RETAINING MEANS FOR STACKING A PLURALITY OF SAID CASES ONE ABOVE ANOTHER, SAID DRAWERS BEING EACH OF A UNITARY STRUCTURE AND COMPOSED OF HEAT RESISTANT PLASTIC MATERIAL ALLOWING STERILIZATION AND HAVE A PLURALITY OF TISSUE CULTURE TUBE ENGAGING AND RETAINING MEANS INCLUDING A PLURALITY OF SLEEVES RECEIVING RESPECTIVE TUBES WITH A PLURALITY OF ASSOCIATED UNITARY SPLIT RING CLAMPS SECURING ITS RESPECTIVE TUBE WITH ITS SAID DRAWER.