C - Chemistry – Metallurgy – 12 – M
Patent
C - Chemistry, Metallurgy
12
M
195/145, 195/45
C12M 1/32 (2006.01)
Patent
CA 1286621
ABSTRACT An improved device for replicating cultures of micro- organisms grown in petri plates which pierces colonies with an array of fine needles. The device is capable of at least ten replications, and will replicate virtually any colony. The device is in the form of a cylindrically-shaped petri plate lid that fits a petri plate and comprises a base having inside and outside sur- faces; a side wall; and an array of pointed protrusions extending from the inside surface of the base, the array of pointed protru- sions being shorter than the side wall and being arranged such that a circumferential groove for receiving the rim of the petri plate is formed between outermost protrusions and the side wall and that the pointed protrusions penetrate a bed of agar in the petri plate to a predetermined depth when the rim of the petri plate is in contact with the bottom of the groove.
521906
Brown Lewis R.
Smart & Biggar
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